*{
    margin: 0;
    padding: 0;
}
body{
    position: relative;
    width: 100%;
    height: 664px;
}
#app{
    position: absolute;
    width: 100%;
    height: 100%;
}
.mybg{
    position: absolute;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    transition: all 0.3s ease-in-out;
}
.lrDiv{
    width: 560px;
    height: 430px;
    border: 2px black solid;
    background-color: #F4F4F4;
    position: absolute;
    top: 80px;
    right: 370px;
    opacity: 0.8;
    border-radius: 20px;
    box-shadow: black 0px 0px 30px 5px;
}